Weather strip for metal casement windows



Sept' 8: 1953 T. o. CRAIG, JR., E`T AL 2,651,392

WEATHER' STRIP FOR METAL CASEMENT wINDows Sept- 8 1953 T. o. CRAIG, JR ET AL 2,651,392

WEATHER STRIP FOR METAL cAsEMENT wINDows- Filed Deo. 11.195.o

2 sheets-sheet 2 Patented Sept. 8, 1953 WEATHER STRIP FOR METAL CASEMENT WINDOWS Teddie 0. Craig,

Glendale,

Jr., and Joseph Michael Lewis, Calif., assignors, by mesne assignments, to Harold J. Le Vesconte, Glendale, Calif. Application December 11, 1950, Serial N o. 200,254

(Cl. 18S- 65) 6 Claims.

This invention relates to easement windows and particularly to an improved form of weatherstrip for use with metal easement windows.

Heretofore many attempts have been made to provide a suitable weatherstrip for metal casement windows and such attempts have usually resulted in a weatherstripwhich must be applied to the window frame `before the window and frame assembly is installed in a building. Additionally, most if not all of such attempts employ yielding metal strips havingl a resilient edge which engages the window and which on contact with a raisedpoint on the surface engaged, is raised away from the surface over a considerable portion of its length with resultant failure in its intended function. Metal easement type windows are commonly applied on buildings having a stucco exterior and the outer face of the frame component is covered by the stucco,mak ing it thereafter impossible to apply a weather strip element to the outer face of the frame, and it is for this reason that prior art devices-contemplate the installation of weatherstrip to the window and frame before it is installed in a building. So far as is known, all prior art attempts to provide a metal weatherstrip for metal easement windows have beeen deficient in one or both respects discussed above.

With the foregoing considerations in mind, it is an object of the present invention to provide a weatherstrip construction for metal easement windows which comprises mating components carried by the frame and sash elements which are so constructed and arranged as not to be dependent on a smooth straight surface on either the frame or the sash to achieve an eicient seal.

Another object of the invention is to provide a metal weatherstrip construction for metal casement windows which is so constructedand arranged as to be susceptible of application on windows installed in a building.

A further object of the invention is to provide a metal weatherstrip for metal easement windows in which one of the sealing components comprises a U-shaped element which yieldingl'y receives another element to effect a double sealing action.

Still another object of the invention is to provide a metal weatherstrip for metal Casement windows embodying the above advantages and which is so designed as to be capable of being supplied in long lengths for application on the job or which can be furnished in sets for application tov windows of specific standard sizes.

. A still further objectof the invention is to provide a metal weatherstrip for metal easement windows which is simple in design, does not require special skill to install, and which is reliable in use.

With the foregoing objects in view, together with such other objects and advantages as may subsequently appear, the invention resides in the parts and in the construction, combination, and arrangement of parts, described, by way of example, in the following specification of one mode of execution of the invention; reference being had to the accompanying drawings which form a part of said specication and in which drawings:

Fig. 1 is a front elevation of a metal easement window to which the invention has been applied, a portion of the sash component being broken away to disclose concealed parts.

Fig. 2 is a top plan view of Fig. l,

Fig. 3 is a front elevation of a corner of the frame component 'of the window showing the application of one component ofthe vweatherstrip thereto and the formation of a corner joint therein. Y e

Fig. 3a is a front elevation of a splice element for the corner joint shown in Fig. 3,

Figs. 4 and 5 are enlarged transverse sectional views taken, respectively, on the` lines l4 and 5-5 of Fig. 1, Y

Fig. 6 is an enlarged fragmentary front elevation of one of the hinge corners of the window shown in Fig. l,

Figs. 7, 8 and 9 are transverse sectional views taken, respectively, on the lines `l-l, 8--8, vand 9 9 of Fig.' 6, and

Fig. 10 is a fragmentary front elevation of a modified form of corner joint for the weatherstrip.

Referring to the drawings, the invention is shown applied to a steel yeasement window comprising a frame component W and av sash component W hinged thereto along one side ofthe frame component by a pair of hinges H, H each comprising a stationary member H mounted on the frame component, a moving element H" mounted on the sash component and a spacing Washer S; the members being pivot'allv connected by a pin P disposed outwardly from one side edge o'f the frame component as best shown in Figs. 2, '7 and 9. 'The usual opening means .(generally a crank operated worm and wheel segment) and hand operated latch vmeans have been omitted from the drawings as not necessary to the disclosure of the invention.V Both the frame and sash components are formed o'fbar stock of modified Z-bar cross section; the frame component having an outwardly extending wide front ilange A and a short inwardly extending front ange B connected to a wide inwardly extending rear flange B', and short outwardly extending flange A by a web portion C, while the sash component comprises a wide outwardly extending front nange D connected by a web E to a wide inwardly extending flarlg'e and nar# row outwardly extending flange F' (see Figs. 4, and '7). that when closed the flange portions thereof will lie closely adjacent to the corresponding ang portions of the frame component with the webs C and E. thereof spaced aprt as slioiv' in Figs. 4, 5 and 7. The outer v forms a seat for the window g ass and the gia-sed area may ce divided into pariea'r'easby one more mullions l\i as shown in Fig. l; the glass being secured therein by any of the usual"mas employed for thatpurpo'se Since the presence or absence ofthe glass is not necessary to an unueij'standing of one, invention, it has been omitted flri the drawings.

flhe weatherstrip along the hinge side of the window assembly comprises a strip of resilient metal l' having aL flat flange portion 2 adapted to lie on the inner face of the web G and to be se-v curedtllereto' by a' series" of screws 3 threaded intothe4 web C. Along one' edge, the strip l is formedfintoa shallow return bend It' which sure rounds the flangeBaiid thence extends part way across the vangev A and is formed into a return bend shaving an outwardly turned lip portion 6; the return bend being adapted to yieldingly receive the' flange D'of the sashcompon'ent as the wdw is closed as ysho'v'il'ri Fig. 5. The 'strip l extends between tire vadjatr'it ends of the hinge supporting blocks HB which are formed as int'g'ral parts 'of the hinge elements' H andy extend along the fface of the flange' for short distances downwardly frln the upper hlrl'ge and upwardly 'from the lower hinge'. In the'region 'of the hinge blocks, due to the increased thickness of the 'edge that iist bfrebeived the .v'eatherstrip, auxillary strips l are 'ovided each of which (see i and?) comp' ses al anige poi-tion' 8 'secured to the iei face of the web Gand extending from the corners of the sash componentv to' underlie @hechas of the as inrfigs. t, s 'and 9. The strips' {""are 'each provided with return bends l9Y similar to thebends E' which extend around the edge ci `tue frange e and thence are rne'd returr'i bends l0 with lititurried lip portions lvl; the return bends ltbein'gsuiciently wide td yieldihgly receive theV flange D and the siiiierii'r'iposed hinge' blocks HB (see Fig. 9) and beyond the ends of the hinge blocks, the spaces between the overlapping portions of the 'sti-ips i and are filled' by blcks l2 "of 'pl'astic material cemented ior otherwise secured in place as shown in u l The construction off the weatnifstrip extend: ing around the top and bottomaiidvtne opening side of the window is of the cross section shown in 4 'except where in'odi'ed'to 'accommodate `the hin'g'esa's sh'own'i'n ig. 7. comprises a 'stat nary eminent is formed of strips 'of thin re: 'si ent metal which' extend along the 'three sides 'of the frame component, each having a flange portion I'f4 secured to the inner face of the web W by a series of screws l5 and having a shallow return bend I6 extending 'around th'e iiang'e B. The element thence continues across the front face of the flange A to 'about the mid point thereof as 'at l1 :and is bent forwardly away from the'flange The sash component is of such size" 4 and thence back toward the flange with resultant formation of a return bend i8 with the free edge of the strip disposed closely adjacent to the front face of the ange A.

The element I3 may be manufactured in long strips which are then cut to length as illustrated in Fig. 3; the cntinuation of the bead formed by the return bend I8 being formed by an L- shaped corner forming splice element |8a (see Fig. 3c) having end portions lSb which enter the adjacent return' bend and a mid portion lac which is of the same cross sectional dimension as the exterior of the return bend I8.

The ino'ving element I9 which cooperates with thefstatioraiyneliient I3 comprises a strip of thin resilient 'metal having a flange portion 20 lyingn and Secured to the front face of the flange D of the sash component by a series of scre'iivs' 2i. Beyond the free end of the flange D the strip is bent outwardly and thence inwardly to forma return bend 22 terminating in an outturned lip 23; the return bend being adapted to yieldingly embracethe return bend i8' when the window is'closed and thus provide an efficient-v seal which is not dependent on the surface of thewindow elements for its ei'fectivene'ss. The stripsforming the moving elementmay be furnished in long lengths and'notchedto permit the forma-w tion of corners as shown in Fig. 1 or the strips may be cut to form I r'iiter corners as in the case of the stationary element. Alternatively, the moving element strips may be cut with square ends as shown in Fig. l0 'and the corner formed by a corner splice element 24 formed of a metal stamping' having a ange portion 25V which extends around th'e corner and overl-ies thee'nds of the strips formingtne moving element |9- and having a return bend portion 2G which is err-I larged at its endstoreceive theY ends of thereturn bend portions 22" and thence reduced in size to the same sizeA as the return bends 22 and thus forming aV continuous channel along the top, bottom and opening side of the window toen'- gage the return bend portion F8 of the stationary element as the window is'm'oved to closed posi'- tion" as 'shown in 4.-

The space between the' A hinge elements H 'and 'I-I" y formed by the spaciing washers S; in most 'wiridovi/"s` is insuici'ent to receive the full-thickness' or the nested return bends is and 22 and theportlons of tnestripsl and llying therebetween are modiiied-inthe manner bestshown in Figs. (j and "in such cases; Where vsuch reduction in thickness is requir'd the outer leg of thereturn ben-d I8 of the strip i3 is cut away in lthe region of the-hinge elements H and H" leaving a 'single leai"A portion-2? and in all pases, theflange" 20-of the strip i9 is cut away to permit the-returnbend 22 'thereof toVv eii= tend between the hingei'rnembers to the points f juncture with the strips -1 at thecorners. The Vref-'- turn bends 22 which' engage the leaf portion -21 are pinched togethe'rsl'ightly as Vslficiw'n atr 28 in Figs. '1, 'e and ""1 toerigage the leaf 21' and tote received in thenarows'pac'e be'lniveen the 'lidiae cent' faces of the hi'g'e members; this adatsf tion being usually done on the job by merely' pinching the tworfsids of the return bend together for the required distance with apair of piiersor by hammering. Y

Thus ythere has been created a weatherstrip construction or metal easementv windows which is formed from resilient metal 'strips' which are of such shape that they Irl-ay be economically adjacent faces `of the around the wndowand is not dependent-on smooth Window surfaces to effect the sealing.

action. Additionally the installation is simple and does not require highly skilled workers for that purpose. Further, Vit may be applied to Windows in completed vstucco exterior buildings, since only a small portion of the outer face of the-frame component is vrequired to be exposed and the attachment of the stationary element of the weatherstrip to the frame component is on the inner face of the web portion of that cornponent. It is also to be notedthat the 'free end of the return bend portion of the stationary component i3 is disposed in close proximity to or in contact with the front faceof the frame component so that it may effectively support the return bend portionthereof as it is enveloped by the yielding grip of the vreturn bend portion of the moving element Il)V incident to closing the Window. 'v y While we have illustrated and described one embodiment of our invention in the foregoing specification and drawings it is not to be implied therefrom that the invention is limited by such disclosure and it will be understood that our invention embraces all such modifications in the parts, and in the construction, combination, and arrangement of parts as shall come within the purview of the appended claims.

We claim:

1. A weatherstrip construction for a metal Casement window including in combination a rectangular frame component and a sash component hingedly attached thereto and movable from open to closed positions relative to the frame component; said weatherstrip construction comprising a first resilient sheet metal element including a mounting flange portion fixed to an internal surface of the frame component and a longitudinally co-extensive return bend portion extending along the outer face of the top and bottom sides and the side remote from the hinge; said return bend being disposed wholly outwardly beyond the plane of the outer surface of the frame component, and, a second resilient sheet metal element including a mounting flange portion fixed to and extending along the outer surface of the corresponding sides of the sash component and a longitudinally co-extensive return bend portion disposed to yieldingly engage and t over the return bend portion of said first strip incident to closing of the window.

2. A weatherstrip construction for a metal easement window including in combination a rectangular frame component having an outer flange portion and a web portion disposed normally to the flange portion and extending toward the interior of the building and a sash component hingedly mounted at one side of the frame component and movable from open to closed positions relative thereto; said weatherstrip construction comprising a first resilient sheet metal element having a flange portion attached to the exposed surface of the web portion of the frame component and extending along all sides of said frame component except the side thereof to which the sash component is hinged and having a return bend portion substantially co-extensive with said flange disposed wholly outwardly of the plane of the outer surface of the frame component, and a second resilient sheet metal element fixed to the outer surface of and extending along the corresponding sides' of the sash component and having :i

`return bend portion disposed wholly outwardly of the outer surface of the sash component and effective to yieldingly engage and fit over the return bend portion of said first strip incident to closing of the window.

3. .A weatherstrip construction for a metal easement window including in combination a rectangular frame component having an outer flange portion disposed parallel to ra plane containing the frame component and a rearwardly extending web portion adjacent the inner perimeter of the flange and a sash component hingedly mounted along one side of the frame component and having an outer flange portion extending parallel to the flange portion of the frame component; said weatherstrip construction comprising a first resilient sheet metal element including a mounting flange portion fixed to the exposed web surface of the frame component and a return bend portion disposed wholly outwardly from the outer flange portion thereof along all. sides of the frame component except the hinged side thereof, a second resilient sheet metal element including a mounting flange portion attached to the outer surface of the flange portion of the sash component and a return bend portion positioned to overlie and yieldingly grip the return bend portion of said first element when the window is moved to closed position.

4. A weatherstrip construction for a metal easement window including in combination a rectangular frame component having an outer flange portion disposed parallel to a plane containing the frame component and a rearwardly extending web portion adjacent the inner perimeter of the flange and a -sash component hingedly mounted along one side of the framecomponent and having an outer flange portion extending parallel to the flange portion of the frame component; said weatherstrip construction comprising a rst resilient sheet metal element fixed to the frame component and having a return bend portion disposed wholly outwardly from the outer flange portion of the frame component along all sides of the frame component except the hinged side thereof, and a second resilient sheet metal element having a flange portion attached to the flange portion of the sash component and having a return bend portion positioned to overlie and yieldingly grip the return bend portion of said first element when the window is moved from open to closed position.

5. A weatherstrip construction for a metal easement window including in combination a rectangular frame component and a rectangular sash component hingedly mounted on the frame component and movable from open to closed positions with respect to the frame component; said weatherstrip construction comprising a first sealing means comprising a series of resilient metal strips attached to the frame component and extending one each along each of the sides thereof except the hinged side thereof; each of said strips including an integrally formed return bend portion coextensive therewith disposed Wholly outwardly of the frame component, and a second sealing means comprising a series of resilient metal strips mounted one each on the component strips of said corresponding sides of the sash component parallel to the first sealing means and including return bend portions coextensive with the return bend portions of said first sealing means adapted to receive and yieldingly engage the outwardly projecting portions of said first sealing means when the, window is; moved from open to closed positionL 6. A weatherstrip construction, for a.c metal easement Window including in combination a rectangular frame. component and a; rectangular sash component hingedly mounted on the trarneV component and movable from open to closed positions with respect tothe frame component; saidv weatherstrip construction comprising an rst; sealing means comprisingy a. series oi resilient meter strips attached to the frame component and extending one each along each of the.y sides there,- of except the hinged side thereof; each of said stripsY includingV an integrally formed returnbend portion coextensive therewith disposed Whollyl outwardly of the frame component, and a second sealing means comprising a. series of resilient. metal stri-ps mounted one. eachon the corresponding sides of the sash componentr andL disposed parallel to the component strips. of said first sealing meefnsV amd including,n eV returnV bend portion coextensive withE said mst-sealing means.

positioned to receive and outwardly projecting portion of said first sealing means, when the: window is moved from open to closedl position.

TEDDIE O. CRAIG, JR. JQSEPH MICHAEL- LEWIS.

ReferencesV Cited. in the le ofY this patent. UNITED STATES PATENTS Number Name Date L9I3A61 Barringer Sept. 11, 1934 2,011,746 Anderson Aug. 20, 1935 2,040,332 Pomeroy. Sr. May 12, 1936 2,117,391 Adamsv May 17, 1938 2,234,533 Nolan Mar. 11',` 1941 FOREIGN PATENTS Number Country Date 423,747 Great Britain Feb. 7, 1935 522,601 Germany Apr. 1i, 1931 yieldingiy engage the 

